ISSN 1009-6248CN 61-1149/P 双月刊

主管单位:中国地质调查局

主办单位:中国地质调查局西安地质调查中心
中国地质学会

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    物源分析方法及其发展趋势

    Methods and Development Trend of Provenance Analysis

    • 摘要: 物源分析是进行盆地分析、古环境与古气候恢复、古地理重建、构造背景追溯及盆山耦合研究的必要内容和方法,研究意义重大。物源分析的母岩主要包括陆源岩、内源岩、火山源岩、岩浆源岩、变质源岩、地外源岩和混合源岩等几种类型,各类源岩类型依次对应不同的源区及构造环境背景。笔者通过对大量文献的检索和调研,主要总结阐述了沉积岩石学方法、重矿物分析方法、地球化学分析方法、地质年代学方法、黏土矿物学方法、化石及生标化合物方法及地球物理学方法等几类物源分析方法。并展望了未来物源分析的发展趋势。随着新技术和新方法的不断创新与涌现,物源分析将从传统方法转向现代测试技术方法,从单方法向多方法的综合运用完善,从单学科趋于向多学科交叉融合,从定性分析向定量分析发展。

       

      Abstract: Provenance analysis on terrigenous sedimentary rocks is significant for all of palaeogeomorphology remolding, palaeogeography reconstruction, palaeoenvironment and palaeoclimate recovering, original basin resuming, sedimentary basin reappearing, depositional system analysis, sedimentary deposits forecasting, petroleum reservoir predicting, parent rock property tracing, geotectonics settings analysis, crust and geotectonics evolvement resume, and study on coupling of basin and mountains. Source rocks of provenance analysis have several types, which include terrigenous source rocks, volcanic magma source rocks, metamorphic source rocks, exogenous source rocks and mixed source rocks. Based on the retrieval and a vast amount of literature research, the author summarized traditional provenance analysis methods and research progress of sedimentological method,petrographic method, heavy mineral method, element geochemistry method, geochronology method, clay mineral method, fossil and biomarker method, and geophysics method and its research progress.And the future development trend of the provenance analysis has been predicted. With the constant innovation and emergence of new technology and new method, the provenance analysis will be shifted from traditional methods to the modern testing technology methods, from a single method to the integrated approach, from single discipline changes to multidisciplinary cross combination, and from the qualitative analysis to quantitative analysis.

       

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